1. Climatological Section, Geography Department, Humboldt-Universität zu Berlin, Berlin, Germany
2. Department of Environmental Science, Mailman School of Public Health, Columbia University, New York, New York, USA
3. Technische Universität Berlin, Department of Ecology, Berlin, Germany
4. Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Neuherberg/Oberschleißheim, Germany
5. Universidade de Lisboa, IGOT, Centro de Estudos Geográficos, Lisbon, Portugal